This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 3 Human Reproduction – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 3 Human Reproduction Quiz 8 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What hormone needs to spike to signal ovulation? A) FSH. B) LH. C) Estrogen. D) Progesterone. Show Answer Correct Answer: B) LH. 2. Which part of the male reproductive system is common in urinary system? A) Ejaculatory duct. B) Epididymis. C) Ureter. D) Urethra. Show Answer Correct Answer: D) Urethra. 3. When does conception, or fertilization, occur? A) An egg matures in a female's ovary. B) All 23 pairs of chromosomes are present. C) A dominant gene overrides a recessive gene. D) Sperm from a male unites with an egg from a female. Show Answer Correct Answer: D) Sperm from a male unites with an egg from a female. 4. In the embryonic development ..... A) The zygote becomes a multicellular organism. B) The zygote becomes a unicellular organism. C) The zygote becomes a vertebrate organism. D) A sperm and an ovule joins into a zygote. Show Answer Correct Answer: A) The zygote becomes a multicellular organism. 5. This hormone brings about powerful contraction of uterine muscles during child birth. A) Relaxin. B) Oestrogen. C) Progesterone. D) Oxytocin. Show Answer Correct Answer: D) Oxytocin. 6. The testes are situated outside the abdominal cavity within a pouch called A) Urethra. B) Scrotum. C) Penis. D) None of these. Show Answer Correct Answer: B) Scrotum. 7. First Extra embryonic membrane of mammalian embryo are derived from A) Inner cell mass. B) Formative cell. C) Trophoblast cells. D) Follicle cells. Show Answer Correct Answer: C) Trophoblast cells. 8. During spermatogenesis, which of the following cells is the first to become haploid? A) Primary spermatocyte. B) Secondary spermatocyte. C) Sperm cells. D) Spermatid. E) Spermatogonium. Show Answer Correct Answer: B) Secondary spermatocyte. 9. What happens if the egg is not fertilized during the menstrual cycle? A) The uterus lining is maintained. B) The uterus lining thickens. C) The uterus lining is shed. D) The uterus lining is reabsorbed. Show Answer Correct Answer: C) The uterus lining is shed. 10. What happens during ovulation? A) The uterus sheds its lining. B) An egg is released from the ovary. C) An embryo successfully implants into the wall of the uterus. D) A female gamete becomes fertilized. Show Answer Correct Answer: B) An egg is released from the ovary. 11. Which of the following cells during gametogenesis is normally diploid? (2015) A) Spermatogonia. B) Secondary polar body. C) Primary polar body. D) Spermatid. Show Answer Correct Answer: A) Spermatogonia. 12. Why is breastfeeding important? A) It is cheaper than buying milk. B) It passes immunity from mother to baby. C) It tastes better for the baby. D) The mother doesn't need to worry about bottles. Show Answer Correct Answer: B) It passes immunity from mother to baby. 13. A set of coiled tubes that connect the ovaries to the uterus. A) Uterus. B) Fallopian tubes. C) Vas diferens. D) Ovary. Show Answer Correct Answer: B) Fallopian tubes. 14. Check the box of the correct answer:During the ..... gestation, millions of egg cells are produced by the ovaries of a baby girl. A) 6th. B) 4th. C) 5th. D) 8th. Show Answer Correct Answer: C) 5th. 15. Where does a sperm cell find and fertilize an egg cell inside of the woman's body? A) Uterus. B) Fallopian Tube. C) Ovaries. D) Cervix. Show Answer Correct Answer: B) Fallopian Tube. 16. The female equivalent of glans of the penis is the A) Vestibule. B) Hymen. C) Baculum. D) Clitoris. Show Answer Correct Answer: D) Clitoris. 17. Stages of life A) Infancy, adolescence, old age. B) Adulthood, old age, infancy and childhood. C) Adulthood, adolescence, old age, infancy and childhood. D) None of the above. Show Answer Correct Answer: C) Adulthood, adolescence, old age, infancy and childhood. 18. The ..... produce sperm and the male sex hormone testerone. A) Testis. B) Urethra. C) Scrotum. D) Penis. Show Answer Correct Answer: A) Testis. 19. One of the following is a Myth (not true) A) Menstruation is the passing of an unfertilised egg. B) A girl uses sanitory towels to absorb blood. C) Don't sit next to a guy when on periods. D) None of the above. Show Answer Correct Answer: C) Don't sit next to a guy when on periods. 20. What happens if an early embryo splits just before implantation? A) Non-identical twins. B) Identical twins. C) This cannot occur and would harm the embryo. D) Semi-identical twins. Show Answer Correct Answer: B) Identical twins. 21. What produces Progesterone? A) Corpus Luteum. B) Graafian Follicle. C) Testes. D) Pituitary gland. Show Answer Correct Answer: B) Graafian Follicle. 22. Testicular hormones called androgens are secreted by A) Interstitial cells. B) Leydig cells. C) Sertoli cells. D) Both (a) and (b). Show Answer Correct Answer: D) Both (a) and (b). 23. What is the main role of FSH? A) Stimulates follicle to burst and release the ovum. B) Stimulates rebuilding of the uterus wall. C) Stimulates one egg cell to develop (become follicle). D) Completes development of uterus wall, promotes glycogen storage. Show Answer Correct Answer: C) Stimulates one egg cell to develop (become follicle). 24. In the pregnancy diagram, what is the function of the placenta indicated by the label? A) Secretes digestive enzymes. B) Produces mature sperm cells. C) Transfers nutrients and gases. D) Stores unfertilized oocytes. Show Answer Correct Answer: C) Transfers nutrients and gases. 25. In the diagram showing n and 2n stages, what does 2n most likely represent? A) A haploid gamete after meiosis. B) A sperm cell in the epididymis. C) An unfertilized egg in the ovary. D) A diploid zygote after fertilization. Show Answer Correct Answer: D) A diploid zygote after fertilization. ← PreviousNext →Related QuizzesClass 12 Biology Chapter 3 Human Reproduction Quiz 1Class 12 Biology Chapter 3 Human Reproduction Quiz 2Class 12 Biology Chapter 3 Human Reproduction Quiz 3Class 12 Biology Chapter 3 Human Reproduction Quiz 4Class 12 Biology Chapter 3 Human Reproduction Quiz 5Class 12 Biology Chapter 3 Human Reproduction Quiz 6Class 12 Biology Chapter 3 Human Reproduction Quiz 7Class 12 Biology Chapter 3 Human Reproduction Quiz 9Class 12 Biology Chapter 3 Human Reproduction Quiz 10Class 12 Biology Chapter 3 Human Reproduction Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books